The ‘Peri Duo’ iPhone puts a loudspeaker + charger in the phone case

The ‘Peri Duo’ iPhone case integrates a hi-definition speaker system and 2500 mAh battery into the design. creating a full audio experience loud enough to fill several environments, the ‘Peri Duo’ can also provide more than a full charge to smartphones, with a sleek design making it ideal for both casual and professional settings. (via Designboom)